License Not Recognized Error 30 Etabs 2016 Page
ETABS 2016 , "License Not Recognized" with Error Code 30 indicates that while a license was found, it is considered by the software
Antivirus: Add the ETABS installation folder and the License Manager folder to your Antivirus "Exclusion" list.
1. Check License File
- Ensure the license file is correctly installed: Make sure the license file (usually a
.lic file) is in the correct directory. For ETABS 2016, this is often in C:\Program Files\Computers and Structures Inc\ETABS 2016\Licenses.
- Check for typos and formatting issues: Open the license file in a text editor to ensure there are no typos or formatting issues.
If these steps do not resolve the issue, it is recommended to contact Computers & Structures, Inc. (CSI) support directly, as the license file itself may be corrupted or the activation count may have been exceeded. license not recognized error 30 etabs 2016
- Check the exact error message: Does it say “Error 30: License file does not support this version” or “Error 30: Cannot find license server”? The wording clarifies whether it’s a version mismatch or a network issue.
- Inspect the
lservrc file: Navigate to C:\Program Files\Computers and Structures\ETABS 2016\. Look for a file named lservrc (no extension). Open it with Notepad. A healthy file contains several lines of alphanumeric codes. An empty file or a file containing only “[ERROR]” indicates corruption.
- Run License Manager Status: Launch Sentinel RMS License Manager (Start Menu > CSI > License Manager > Server Status). If it shows “No features found” or “Communications error,” the problem is with the license server setup.
- Temporarily disable antivirus: Disable real-time protection briefly and attempt to launch ETABS. If Error 30 disappears, the antivirus is blocking.
Common Causes
Error 30 occurs when the Sentinel RMS license manager (used by CSI software prior to version 18) fails to validate the license. Typical triggers include: ETABS 2016 , "License Not Recognized" with Error
- Whitelist ETABS in antivirus – Exclude the ETABS and License Manager folders from real-time scanning.
- Keep a backup of
lservrc – Store it in a safe location (e.g., cloud drive, external disk).
- Avoid unnecessary network adapter changes – Disable virtual adapters permanently if you don’t use virtualization.
- Schedule service restarts – Create a simple batch script to restart the CSI License Service weekly.
- Update with caution – Before major Windows updates, copy the
lservrc file elsewhere.